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A high capacity well is a well that has the capacity to withdraw more than 100,000 gallons per day, or a well that, together with all other wells on the same property, has a capacity of more than 100,000 gallons per day. Residential wells and fire protection wells are excluded from the definition of a high capacity well, and their pumping capacities are not included in the calculation of a property's well capacity.

In June 2017 2017 Wisconsin Act 10 [exit DNR] (Act 10) was signed into law. Under Act 10, the DNR has the authority to evaluate and model the impacts of groundwater withdrawals on three specific lakes in the Central Sands region.